优化代码，性能暴涨

src/org/kne/cloud/network/klalb/PINGPacket.java

@@ -9,30 +9,20 @@ import java.nio.ByteBuffer;
 
 public class PINGPacket extends KLALBPacket {
 
-	
+	private static final int HEADER_LENGTH=9;
 
 	public long getTime() {
-		return header.getLong(1);
+		return klalbHeader.getLong(1);
 	}
 
-	
 
-	@Override
-	public long getLength() {
-		return super.getLength()+8;
-	}
-
-	@Override
-	protected int getHeaderSize() {
-		return super.getHeaderSize()+8;
-	}
 
 	public PINGPacket(long time) {
-		super(PING,-1);
-		header.putLong(time);
+		super(PING,HEADER_LENGTH,-1);
+		klalbHeader.putLong(time);
 	}
 	public PINGPacket(ByteBuffer bb) {
-		super(bb);
+		super(bb,HEADER_LENGTH);
 	}
 
 	@Override